*{
    margin: 0;
    padding: 0;
    color: beige;
    font-family: cursive;
    text-decoration: none;
}
html>body{
    height: 100%;
    background-color:#2a2736;
}

.banner {
    width: 100%;
    height: 60px;
    border-bottom: 2px solid white;
}

.banner>ul>li {
    float: left;
    list-style: none;
    font-weight: lighter;
    font-family: cursive;
    line-height: 60px;
}

.sys {
    padding-right: 60%;
    font-size: 35px;
}

.sys>.icon-sys {
    width: 50px;
    height: 50px;
    position: absolute;
    margin-left: 30px;
    background: url('../image/sys.png') no-repeat center;
    background-size: contain;
}
.banner-sys{
    margin-left: 90px;
}

.ban {
    font-size: 20px;
    margin-right: 20px;
}
.content{
    width: 100%;
    height: 100%;
}
.left-nav{
    float: left;
    /* position: absolute; */
    width: 270px;
    height:600px;
    background-color:#29293d;
}
.left-nav .head{
    height: 50px;
    padding-top: 30px;
    padding-bottom: 10px;
    border-bottom: 1px solid rgb(50, 50, 158);
}
.left-nav .head .head-icon{
    float: left;
    width: 40px;
    height: 40px;
    margin-left: 50px;
    margin-right: 30px;
    background: url('../image/book.png') no-repeat center;
    background-size: contain;
}
.head-icon::after{
    content: "";
    display: block;
    clear: both;
}
.left-nav .head .head-content{
    font-size: 30px;
}
.left-nav ul li{
    position: relative;
    height: 50px;
    line-height: 50px;
    font-size: 20px;
    font-weight: lighter;
    padding-top: 10px;
    list-style: none;
    border-bottom: 1px solid rgb(50, 50, 158);
    cursor: pointer;
}
.left-nav ul li>a{
    margin-left: 80px;
    padding-top: 10px;
}
.left-nav ul li span{
    position: absolute;
    width: 30px;
    height: 30px;
    margin-left: 20px;
    margin-top: 10px;
    margin-right: 30px;
    background-size: contain;
}
.icon-person{
    background: url('../image/person.png') no-repeat center;
}
.icon-admin{
    background: url('../image/admin.png') no-repeat center;
}
.icon-role{
    background: url('../image/role.png') no-repeat center;
}
.icon-publish{
    background: url('../image/publish.png') no-repeat center;
}
.icon-cart{
    background: url('../image/addbook.png') no-repeat center;
}
.icon-put{
    background: url('../image/put.png') no-repeat center;
}
.icon-stock{
    background: url('../image/stock.png') no-repeat center;
}
.right{
    margin-left: 300px;
    height: 600px;
}
.right-card{
    position: absolute;
    margin: 60px;
    width: 1000px;
    height: 500px;
    background-color: #292949;
    border-radius: 10px;
}
.right-card>div{
    height: 100%;
}
.right-card>div>ul{
    height: 100%;
}
.right-card>div>ul>li{
    display: none;
    height: 500px;
    margin: 20px;
    border-radius: 10px;
    padding-left: 10px;
    padding-top: 25px;
}
.right-card .show{
    display: block;
}
.title-box{
    position: absolute;
    top: -28px;
    left: 80px;
    border-radius: 5px;
    font-size: 30px;
    font-weight: lighter;
    padding-left: 30px;
    padding-right:30px;
    padding-top: 10px;
    padding-bottom: 5px;
    background-color: #585dce;
}
input{
    background-color:transparent;
    border: 0px;
    width:450px;
    height:50px;
    font-size: 20px;
    margin-left: 100px;
    border-bottom: 1px solid rgb(50, 50, 158);
    outline: none;
    margin-bottom: 20px;
}
.right ul li span{
    position: absolute;
    width: 35px;
    height: 35px;
    margin-left: 55px;
    margin-top: 10px;;
    background-size: contain;
}

